Research And Design Of The Relativistic Effect Remote Control Experiment System(RES)

In 1905, the famous physicist Albert Einstein put forward the principle of special relativity for the first time. In modern physics, people through continuous exploration to verify the effects of special relativity by observing the relative between fast electron momentum and kinetic energy in lab of general physics. The experimental instrument developed by the Department of physics, Tongji University, modern physics laboratory, RES-99 type relativistic effect experimental instrument is such a device. The whole experiment system is made up by magnetic separator, a Nal (T1) scintillation detector, RS Energy Disperse Spectroscopy, multi-channel pulse analysis software. The system including spectrum acquisition, spectrum display, data smoothing, peak searching and nuclide identification, etc. Through this experiment, people can learn about magnetic spectrometer measurement principle, the using method of scintillation counter and some experimental data processing method. It can also verify the special theory of relativity from the side.In order to reduce the nuclear radiation does harm on the human body, make convenient to arrange experimental time and manage the experiment instrument, and develop the remote control experiment teaching reform in colleges and universities, people make full investigation and research on the base of RES-99 relativistic effect experimental spectrometer system, combined with the current computer control technology and communication technology, put forward that by means of web application technology to make the remote operation of field devices come true, and the concept that the experimental data collected by the spectrometer system is displayed on the remote client. It can improve the function of the whole system, remote client issue control command and control field equipment to complete the acquisition of experimental data. The server will collect the data back to the remote client to process dynamic acquire data, and to realize the spectral data analysis and radionuclide identification and other related spectral data processing functions.In order to realize the system designed requirements, the computer will establish web site based on ASP. NET in the laboratory, and in the data collection module of RES-99 type spectrometer system will increase the signal control terminal to make the remote control equipment to complete the acquisition of experimental data come true. Data acquisition is achieved by web instead of upper machine, and the display of the spectral data is achieved by the Highcharts chart library. The control terminal includes the core chip which is the minimum system board of Tmega328, the 9-pin serial driver module, DRV8825 motor drive module,2 phase 4 wire stepper motor, and the control terminal servers via serial communication control. Based on various technologies, in this paper, a series of experimental system is presented, which is suitable for the fast, stable and effective energy spectrum processing and nuclear identification of Web applications.